CN201963212U - Steel sucker rod, sucker rod group and pipe pliers - Google Patents
Steel sucker rod, sucker rod group and pipe pliers Download PDFInfo
- Publication number
- CN201963212U CN201963212U CN2011200813085U CN201120081308U CN201963212U CN 201963212 U CN201963212 U CN 201963212U CN 2011200813085 U CN2011200813085 U CN 2011200813085U CN 201120081308 U CN201120081308 U CN 201120081308U CN 201963212 U CN201963212 U CN 201963212U
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- China
- Prior art keywords
- steel
- sucker rod
- pumping rod
- rod made
- bar head
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Abstract
The utility model discloses a steel sucker rod, which comprises a rod head, wherein a spanner surface of the rod head comprises a cylindrical surface and at least two spanner retaining bars which are distributed on the cylindrical surface. The utility model further provides a sucker rod group using the steel sucker rod and dedicated pipe pliers which are matched with the steel sucker rod. The uniform transition of the rod head in the rod length direction improves the strength and the anti-fatigue performance of the rod head, and further leads the motion resistance of the sucker rod to be reduced when the sucker rod is used for pumping oil up and down in a pumping pipe.
Description
Technical field
The sucker rod group that the utility model relates to the employed pumping rod made by steel of oil pumper in the oil recovery field, oil field and is made of a plurality of sucker rods and box cupling.The utility model also relates to a kind of special tube pliers of this pumping rod made by steel of dismounting.
Background technology
In oil recovery field, oil field, sucker rod is the important component part of oil pumper.
At present, the structure of the pumping rod made by steel that generally uses on the oil pumper as depicted in figs. 1 and 2, pumping rod made by steel 10 ' comprises shaft 11 ' and bar head, and the bar head is made of the thick flange 12 ' of pier, square 13 ' of spanner, external screw thread shoulder 14 ' and connecting thread 15 ' successively.
The process of pumping rod made by steel is as follows: at first, earlier with bar head jumping-up, afterwards bar head mould forging molding is obtained square of spanner, obtain connecting thread and other process structure by machining mode then.
At present, the concavo-convex degree of thick flange of cross sectional shape that spanner is square 13 ' and pier 12 ' and external screw thread shoulder 14 ' is big, have tangible step P, and processing has brought difficulty to die-forging forming, and the fatigue resistance of bar head is also low slightly.Particularly sucker rod is carried up and down in the process of oil pumping in oil pick-up tube, and excessive concavo-convex transition meeting causes certain resistance of motion, and then increases the lifting load of sucker rod.
The utility model content
The purpose of this utility model is the sucker rod group that a kind of pumping rod made by steel is provided and is made up of a plurality of sucker rods and box cupling, and the fatigue resistance with the bar head that improves pumping rod made by steel reduces the resistance of motion of sucker rod in oil pick-up tube simultaneously.The purpose of this utility model also is to provide a kind of special tube pliers of dismounting pumping rod made by steel.
For this reason, according to one side of the present utility model, provide a kind of pumping rod made by steel, comprised the bar head, wherein, the wrench faces of bar head comprises the face of cylinder and at least two spanner retaining muscle that distribute on the face of cylinder.
Further, above-mentioned at least two spanners retaining muscle is four, is distributed on the periphery on the face of cylinder.
Further, above-mentioned at least two spanners retaining muscle is three, is distributed on the periphery on the face of cylinder.
Further, above-mentioned bar head comprises wrench faces, external screw thread shoulder and connecting thread successively.
Further, above-mentioned bar head comprises the thick flange of pier, wrench faces, external screw thread shoulder and connecting thread successively.
According on the other hand of the present utility model, a kind of pipe wrench is provided, its clamping face comprises first clamping surface that coats the face of cylinder and holds at least two grooves that spanner keeps off muscle with suitable according to the wrench faces of pumping rod made by steel described above.
The utility model also provides a kind of sucker rod group, comprises the box cupling of many sucker rods and the bar head that is connected adjacent two sucker rods, and wherein, a plurality of sucker rods comprise according to pumping rod made by steel described above.
Further, the end face external diameter of above-mentioned box cupling is identical with the external diameter of the external screw thread shoulder of described bar head.
In the utility model, replace the square wrench faces of prior art with the wrench faces of substantially cylindrical, make that transition is even between wrench faces and the external screw thread shoulder.So, the bar head has not only improved the intensity and the anti-fatigue performance of bar head in the even transition of bar length direction, but also makes when sucker rod is proposed oil pumping up and down in oil pick-up tube, and the smooth resistance that moves reduces, and so, helps to alleviate to promote and loads, and obtains energy-saving effect.
Except purpose described above, feature and advantage, other purpose, feature and the advantage that the utlity model has will be described in further detail in conjunction with the accompanying drawings.
Description of drawings
Constitute this manual a part, be used for further understanding accompanying drawing of the present utility model and show preferred embodiment of the present utility model, and be used for illustrating principle of the present utility model with manual.Among the figure:
Fig. 1 shows the structural representation of the pumping rod made by steel of prior art;
Fig. 2 shows the A-A schematic cross-section of pumping rod made by steel shown in Figure 1;
Fig. 3 shows the structural representation according to pumping rod made by steel of the present utility model;
Fig. 4 shows the B-B schematic cross-section of pumping rod made by steel shown in Figure 3;
Fig. 5 shows the structural representation according to pipe wrench of the present utility model;
Fig. 6 shows the structural representation according to sucker rod group of the present utility model; And
Fig. 7 shows the structural representation according to the clip of sucker rod group of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Fig. 3 shows the structural representation according to the pumping rod made by steel of the utility model preferred embodiment, and Fig. 4 shows the B-B schematic cross-section according to pumping rod made by steel of the present utility model.As shown in Figure 3 and Figure 4, pumping rod made by steel 10 comprises shaft 11 and the thick bar head of pier, the bar head comprises wrench faces 12, external screw thread shoulder 14 and connecting thread 16 successively, four spanners retaining muscle 12b that this wrench faces comprises face of cylinder 12a and distributes on the described face of cylinder below are called " star facet " with the wrench faces of the utility model given shape.
Compare with the pumping rod made by steel of prior art, the external screw thread shoulder and the connecting thread of bar head of the present utility model do not change, and wrench faces is improved to star facet by square face.Act on as follows: the profile between thick flange 18 of pier and the wrench faces reaches unanimity, can regard as and omit the thick flange of pier, reduce because of step area that appearance difference caused between wrench faces and the external screw thread shoulder, so, on the one hand, the intensity and the anti-fatigue performance of sucker rod are improved, and on the other hand, have reduced the resistance of motion when sucker rod moves up and down in oil pick-up tube.
In another embodiment according to pumping rod made by steel of the present utility model, the spanner retaining muscle on the wrench faces is two, three, more than five or five, is distributed on the periphery on the face of cylinder.
Preferably, the face of cylinder of wrench faces and external screw thread shoulder arc transition, and the flush of the height of spanner retaining muscle and external screw thread shoulder or lower slightly.
In another embodiment according to pumping rod made by steel of the present utility model, keep the thick flange of pier on the bar head, and the flush of the height of spanner retaining muscle and the thick flange of pier or lower slightly.
Manufacture process according to pumping rod made by steel of the present utility model is as follows, at first, the thick bar head of pier, die-forging forming wrench faces afterwards, last machine obtains other process structures such as external screw thread shoulder, connecting thread.
Can use existing pipe wrench, realize and the loading and unloading of box cupling according to pumping rod made by steel of the present utility model, also can use according to special tube pliers 20 of the present utility model and load and unload pumping rod made by steel.
Fig. 5 shows the structural representation according to pipe wrench of the present utility model.As shown in Figure 5, the clamping face according to pipe wrench 20 of the present utility model comprises first clamping surface 22 on the face of cylinder that coats wrench faces and holds the groove 24 that spanner keeps off muscle.Other structure of pipe wrench is identical with the pipe wrench of prior art, does not give unnecessary details at this.
When the pumping rod made by steel installation or removal, make the clamping surface of pipe wrench clamp wrench faces, rotate the handle of pipe wrench, can realize the installation or removal operation of pumping rod made by steel.
Use special tube pliers of the present utility model to come the installation or removal pumping rod made by steel, clamping is reliable and stable, can improve the installation effectiveness of pumping rod made by steel.
Pumping rod made by steel of the present utility model is to link together by box cupling (rod collar) in use, forms the sucker rod group that length reaches several kms.Based on the improvement of above-mentioned sucker rod profile, the resistance of motion of sucker rod group in oil pick-up tube obtained reduction, so helps to reduce to promote load, obtains energy-saving effect.
Fig. 6 shows the syndeton schematic diagram according to sucker rod group of the present utility model.As shown in Figure 6, be threaded togather by box cupling 30 between the bar head of two adjacent pumping rod made by steel.
Fig. 7 shows the structural representation according to the box cupling of sucker rod group of the present utility model.As shown in Figure 7, box cupling 30 has the transitional surface 32,34 with the external screw thread shoulder adjacency of the bar head of described sucker rod, the end face external diameter of box cupling is identical with the external diameter of the external screw thread shoulder of described bar head, and promptly the small end of this transitional surface 32,34 flushes with external screw thread shoulder 14.
By improving the surface configuration of box cupling 30, make that the profile transition of sucker rod and box cupling is even, so can further reduce the lifting resistance of sucker rod group when oil pick-up tube moves up and down, obtain energy-saving effect.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Description of reference numerals
10 pumping rod made by steel, 11 shafts
12 wrench faces, 14 screw thread shoulders
The thick flange of 16 connecting threads, 18 piers
12a face of cylinder 12b spanner block reinforcement
20 pipe wrench, 22 first clamping surfaces
24 grooves, 30 box cuplings
32,34 transitional surfaces.
Claims (8)
1. a pumping rod made by steel comprises the bar head, it is characterized in that, the wrench faces of described bar head comprises the face of cylinder and at least two spanner retaining muscle that distribute on the described face of cylinder.
2. pumping rod made by steel according to claim 1 is characterized in that, described at least two spanners retaining muscle is four, is distributed on the periphery on the described face of cylinder.
3. pumping rod made by steel according to claim 1 is characterized in that, described at least two spanners retaining muscle is three, is distributed on the periphery on the described face of cylinder.
4. pumping rod made by steel according to claim 1 is characterized in that, described bar head comprises described wrench faces, external screw thread shoulder and connecting thread successively.
5. pumping rod made by steel according to claim 1 is characterized in that, described bar head comprises the thick flange of pier, described wrench faces, external screw thread shoulder and connecting thread successively.
6. a pipe wrench is characterized in that, its clamping face comprises first clamping surface that coats the described face of cylinder and holds at least two grooves that described spanner keeps off muscle with suitable according to the wrench faces of each described pumping rod made by steel in the claim 1 to 5.
7. sucker rod group comprises the box cupling of many sucker rods and the bar head that is connected adjacent two sucker rods it is characterized in that described a plurality of sucker rods comprise according to each described pumping rod made by steel in the claim 1 to 5.
8. sucker rod group according to claim 7 is characterized in that, the end face external diameter of described box cupling is identical with the external diameter of the external screw thread shoulder of described bar head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200813085U CN201963212U (en) | 2011-03-24 | 2011-03-24 | Steel sucker rod, sucker rod group and pipe pliers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200813085U CN201963212U (en) | 2011-03-24 | 2011-03-24 | Steel sucker rod, sucker rod group and pipe pliers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963212U true CN201963212U (en) | 2011-09-07 |
Family
ID=44525747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200813085U Expired - Fee Related CN201963212U (en) | 2011-03-24 | 2011-03-24 | Steel sucker rod, sucker rod group and pipe pliers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963212U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9624736B1 (en) | 2016-03-04 | 2017-04-18 | Tenaris Connections B.V. | Sucker rod end |
-
2011
- 2011-03-24 CN CN2011200813085U patent/CN201963212U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9624736B1 (en) | 2016-03-04 | 2017-04-18 | Tenaris Connections B.V. | Sucker rod end |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20170324 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |